Q: In the middle of the night you are standing a horizontal distance
In the middle of the night you are standing a horizontal distance of 14.0 m from the high fence that surrounds the estate of your rich uncle. The top of the fence is 5.00 m above the ground. You have...
See AnswerQ: A student sits atop a platform a distance h above the ground
A student sits atop a platform a distance h above the ground. He throws a large firecracker horizontally with a speed v. However, a wind blowing parallel to the ground gives the firecracker a constant...
See AnswerQ: An airplane pilot sets a compass course due west and maintains an
An airplane pilot sets a compass course due west and maintains an airspeed of 220 km/h. After flying for 0.500 h, she finds herself over a town 120 km west and 20 km south of her starting point. (a) F...
See AnswerQ: When a train’s velocity is 12.0 m/s eastward
When a train’s velocity is 12.0 m/s eastward, raindrops that are falling vertically with respect to the earth make traces that are inclined 30.0° to the vertical on the windows of the train. (a) What...
See AnswerQ: In a World Cup soccer match, Juan is running due north
In a World Cup soccer match, Juan is running due north toward the goal with a speed of 8.00 m/s relative to the ground. A teammate passes the ball to him. The ball has a speed of 12.0 m/s and is movin...
See AnswerQ: An elevator is moving upward at a constant speed of 2.
An elevator is moving upward at a constant speed of 2.50 m/s. A bolt in the elevator ceiling 3.00 m above the elevator floor works loose and falls. (a) How long does it take for the bolt to fall to th...
See AnswerQ: Two soccer players, Mia and Alice, are running as Alice
Two soccer players, Mia and Alice, are running as Alice passes the ball to Mia. Mia is running due north with a speed of 6.00 m>s. The velocity of the ball relative to Mia is 5.00 m/s in a direction 3...
See AnswerQ: A spring-gun projects a small rock from the ground with
A spring-gun projects a small rock from the ground with speed v0 at an angle u0 above the ground. You have been asked to determine v0. From the way the spring-gun is constructed, you know that to a go...
See AnswerQ: You have constructed a hair-spray-powered potato gun and
You have constructed a hair-spray-powered potato gun and want to find the muzzle speed v0 of the potatoes, the speed they have as they leave the end of the gun barrel. You use the same amount of hair...
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